let pipes = [];

​

function setup() {

  createCanvas(400, 600);

  bird = new Bird();

  pipes.push(new Pipe());

}

​

function draw() {

  background(50);

  bird.show();

  bird.update();

  for(let i = pipes.length - 1; i >= 0; i--) {

    const pipe = pipes[i];

    pipe.show();

    pipe.update();

    if (pipe.offscreen()) {

      pipes.splice(i, 1);

    }

  };

  if (frameCount % 100 === 0) {

    pipes.push(new Pipe());

  }

}

​

function keyPressed() {

  if (key == ' ') {

    bird.up();

  }

}